Electricity Wiring Basics - Solar Shingles: what the heck are they? Solar Shingles (also called solar roof tiles) are simply small rectangular solar panels made to look like asphalt roof tiles. They’re typically small, flexible units that are strung together (like normal roof tiles), and the term ‘solar shingles’ encompasses newer thin. PV Basics: Step One -- Avoid the scams: There are some very heavily advertised guides for sale on the Internet in the $50 range that promise that you can make PV panels that will provide "80%" of your homes power for a couple hundred dollars.. Home > Support > Basics of Surge Protector: What is surge?What is transient voltage surge? Surge and Transient Voltage Surge are temporary rise in voltage and current on an electrical circuit. Their voltage ranges are greater than 2000 volt and current ranges are greater than 100 ampere. Typical rise time is in the 1 to 10 microsecond range..